Welcome to the Top Reaction Test App on the App Store! Measure your reaction times to the microsecond and compete with your friends and others around the world in a series of exciting mini-games designed to push your skill to the edge.

Games include:
- Race Lights-Out
- Whack-a-dot
- Colour change
- Ruler drop

Game Center allows you to challenge friends and take your place on global leaderboards - giving you that ultimate flex.